Lamp-holder for bicycles.



J. J. McGUCKlN.

LAMP HOLDER FOR BICYCLES; APPLICATION FILED DEC-B, 19]].

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$1 144'4' alien/"e1 QM/J 5M Patented May 28,1918.

J. J. McGUCKIN.

LAMP HOLDER FOR BICYCLES. APPLICATION FILED name. 191:.

Patented May 28,1918.

2 SHEETS-SHEET 2.

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JOHN J. McG-UGKIN, OF BROOKLYN, NEW YORK, ASSIGNOR TO LOUIS SCHWAB, OF NEW YORK, N. Y., AS SURVIVING PARTNER OF THE FIRM 0F STEVENS & COMPANY, FORMERLY COMPOSED OF SAID LOUIS SCHWAB AND FRANK N. STEVENS.

LAMP-HOLDER FOR BICYGLES.

Application filed December 8, 1917.

To all whom it may concern Be it known that 1, JOHN J. MGGUCKIN, a citizen of the United States, residing at No. 633 Fifty-fourth street, borough of Brooklyn, county of Kings. city and State of New York, have invented certain new and useful Improvements in Lamp-Holders for Bicycles, of which the following is a speciiication.

My improvements relates to a device, commonly called a. lamp bracket, for attaching a lamp to the forward part of a bicycle, and my invention consists in the particulars hereinafter described and claimed.

In the drawings Figure 1 is a side view of a handle bar post and extension showing my improved lamp bracket applied thereto; Fig. 2 is a similar view of the clamping end of the extension showing the bracket applied in a reversed position from that shown in Fig. 1; Fig. 3 is a view of the handle bar post and extension showing a modified form of my lamp bracket applied thereto, Fig. 4 is an edge view, looking to the left on Fig. 3 of the bracket shown in Fig. 3 detached from the jaws of the handle bar post extension, and also showing in section a lamp flange attached thereto by a bolt and nut; Fig. 5 is a View of the same looking to the right on Fig. 3, but omitting the lamp flange, bolt and nut; Fig. 6 is a bottom view; and Fig. 7 is a top view of the same showing a modification of the shank; and Fig. 8 is a side view of a modification.

In all the figures corresponding parts are designated by similar reference numerals.

The extension 2 of the handle bar post 1 is provided with the usual clamping jaws 3, 4, adapted to grip between them the handle bar 5 which is shown in section.

The lamp bracket 6 is provided with a shank 7, which is adapted to pass through the ends of the jaws 8, 4, and is threaded to screw into the jaw 4 and also to receive the nuts 8 and 9. The lower part of the bracket 6 may be provided with one bracket element 10, as shown in Figs. 1, 2 and 8, or it may have two such bracket elements, 10 and 11, as shown in the other figures, the element 10 being adapted to be clamped against the complementary flange of a lamp which is intended to engage a bracket upon one side only, while the element 11 is split so as to receive a lamp which is to be gripped on Specification of Letters Patent.

Patented May 28, 1918.

Serial No. 206,156.

both its sides by the drawing together of the sides of the bracket by clamping means, as the bolt and nut shown in Fig. 4. The flange gripping sides of the bracket elements 10, 11 are preferably serrated or roughened as indicated at 12 and 13. By turning the appropriate end of the bracket forward it can be adjusted to receive the particular type of lamp flange carried by the lamp which is to be attached to it. i

As usually constructed, the hole through the lower jaw 4 of the extension is threaded, while the hole through the upper jaw '3 is not. When, therefore, the shank 7 is screwed up through the jaw 4, as shown in Figs. 2 and 3, and its bracket end is turned into the proper position, it can be positively locked in its relation to the jaw 4 by setting up the nut 9 so as to operate as a lock nut. This will effectually prevent the sidewise displacement of the bracket by the jarring of the lamp or by lateral stress when, for in stance, the bicycle is inclined to one side or is laid down.

lVhen the bracket is applied in the position shown in Fig. 1, the nut 9 takes. up any play which might otherwise exist after the bracket has been turned into the desired position, projecting forward from the handle bar and may also be turned down to complete the closing of the jaws 3 and 4 around the handle bar, and the nut 8 performs the function of a lock nut below the jaw 4.

Thus, in whichever position the bracket is applied to the extension, its shank positively closes the jaws 3, 4 of the handle bar clamp and the bracket arm is effectually locked and held in its proper position for receiving a lamp.

Furthermore, when the bracket is applied above the clamp in the position shown in Fig. 1, it can be made to close the clamp, without the cooperation of the nuts 8 and 9, by being screwed down into the jaw 4, and the spring of the clamp will ordinarily be sufiicient to allow the adjustment of the lamp receiving element 10, in the desired position, and to hold it there with considerable tenacity.

The bracket may also be held firmly against rotation in the jaws 3, 4, by employing the modified form of shank shown in Figs. 4, 5, 7 and 8, wherein the shank is enlarged toward its bottom, as indicated at 1%, so that it will jam in the hole in the jaw; and the shank may also be provided with ribs or ridges 15, 15, preferably having annular edges, adapted to bite into the jaw when the shank is drawn to duty by its nut 8. When this ribbed form of shank is used the diameter of the shank must be reduced so that its thread will not mesh with the thread in the jaw d, but the shank may be drawn up through the jaw 4: by the nut 8 so as to wedge the ribbed cone 1% into the jaw a without grinding it by rotation in its seat.

in Figs. 1, 2 and 8 I have shown the bracket as provided with but one lamp holding elementlO. And it is obvious that in this single style either of the forms 10 or 11 may be used, and that other well known equivalent forms of lamp holding elements might be substituted for 10 or 11 without departing from the spirit of my intention.

By means of my invention 1 secure an integral lamp, bracket and clamping element which, with its cooperating nuts, will perform the dual functions, of closing the handle bar clamp, and 0t constituting a lamp bracket which is firmly held in posi tion against lateral displacement, and which can be readily applied and removed, and which also by being placed in ditierent positions, will accommodate lamps fitted with different types-of flanges.

Having thus decribed my invention what 1 claim and desire to secure by Letters Patent of the United States, is

l. The combination, with, the gripping jaws of a bicycle handlebar-post extension,

of a lamp bracket provided with an integral, threaded shank, adapted to contract the gripping jaws and to hold the lamp bracket in operative position.

2. The combination, with the gripping jaws of a bicycle handlebar-post extension, of a lamp bracket provided with an integral, threaded shank, and a cooperating nut, adapted to contract the gripping jaws and to hold the lamp bracket in operative position.

The combination with the gripping jaws of a bicycle handle-bar post extension, of a lamp bracket provided with an integral, reversible, threaded shank, and a cooperating nut, adapted to contract the gripping jaws and to hold the lamp bracket in operative position.

nacnevo 4c. The combination, with the gripping jaws of a bicycle handlebar-post extension, or a lamp bracket provided with can in te ral, threaded sunk and anti-rotation means and a cooperating nut, adapted to contract the gripping jaws and to hold the lamp bracket in operative position. a

5. The combination, with the gripping jaws of a bicycle handlebar-post extension, of a lamp bracket provided with an integral, threaded shank, provided with a clamping nut and anti rotation means, and adapted to contract the gripping jaws and to hold the lamp bracket in operative position.

6. The combination, with the gripping jaws of a bicycle handlebar-post extension, of a lamp bracket provided with an in tegral, reversible, threaded shank, provided with a clamping nut and anti-rotation means, and adapted to contract the gripping jaws and to hold the lamp bracket in operative position.

7. The combination, with the gripping aws ot' a bicycle handlebar-post extension, of a bracket provided with plurality of integral lamp-holding elements and an in tegral, threaded shank and a cooperating nut, adapted to contract the gripping jaws and to hold the bracket in a plurality of optional operative positions.

8. The combination, with a bicycle handlebar-post extension, provided with handle bar-gripping jaws apertured to 'receive a clamping shank, of a lamp holding bracket having an integral threaded shank provided with cooperating clamping means and with anti-rotation means. I

9. The combination, with a bicycle handlebar-post extension, provided with handle-bar-gripping jaws apertured to receive a clamping shank, ota lamp holding bracket having an integral threaded shank provided with a tapered portion constitut ing anti-rotation means and with cooperating clamping means.

10. The combination, with a bicycle handlebar-post extension, provided with haudle-bar-gripping jaws apertured to re ceive a clamping shank, of a lamp holding bracket having an integral threaded shank provided with a tapered, ribbed port-ion constituting anti-rotation means and with cofiperating claniplng means.

JOHN J. MC-GUCKIN.

copies of this patent may be obtained for five ccnts'each, byaddressing the Commissioner of raients,

Washington, 33. '3. 

